Mill Creek, OK climate
Mill Creek has mild winters and hot summers. A typical July afternoon reaches 93°, a January night drops to 30°, and about 2 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Mill Creek feels like
Winter
Spring
Summer
Fall
Mill Creek weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 52° | 30° | 2.2" | 1.0" | 6 | 1 | 37° – 49° |
| February | 57° | 34° | 2.3" | 0.3" | 6 | 0 | 38° – 54° |
| March | 65° | 42° | 3.4" | 0.1" | 8 | 0 | 48° – 61° |
| April | 73° | 50° | 3.8" | 0 | 7 | 0 | 56° – 68° |
| May | 80° | 59° | 5.8" | 0 | 9 | 0 | 67° – 75° |
| June | 88° | 68° | 4.5" | 0 | 7 | 0 | 74° – 84° |
| July | 93° | 71° | 3.0" | 0 | 6 | 0 | 78° – 90° |
| August | 94° | 71° | 3.0" | 0 | 6 | 0 | 76° – 91° |
| September | 85° | 63° | 4.3" | 0 | 7 | 0 | 70° – 81° |
| October | 75° | 52° | 4.3" | 0 | 7 | 0 | 57° – 69° |
| November | 63° | 41° | 2.7" | 0 | 6 | 0 | 46° – 59° |
| December | 54° | 32° | 2.9" | 0.3" | 6 | 0 | 34° – 47° |
| Year | 73° | 51° | 42.2" | 1.7" | 81 | 1 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Mill Creek
Mill Creek gets 42 inches of rain and melted snow a year. May is the wettest month and January the driest. Rain or snow falls on about 81 days a year.
About 222 frost-free days a year
In half of years the last 32° night comes by March 29 and the first one by November 5. That leaves about 222 frost-free days for gardens, longer than 83% of U.S. towns.
Heating and cooling a home in Mill Creek
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Mill Creek, 61% of that work is heating and 39% is cooling.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
How Mill Creek compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Mill Creek averaged 0.3° warmer than the 1900s. The biggest change is in March (+1.4°). The shift is smaller than in 99% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Mill Creek’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 38° to 54°. May is the most reliable, staying within 8°.
Common questions about Mill Creek’s climate
What is the coldest month in Mill Creek?
January, with a typical high of 52° and a low of 30°.
What is the hottest month in Mill Creek?
August, with a typical high of 94° and a low of 71°. About 80 days a year reach 90°.
How much snow does Mill Creek get?
About 2 inches in a normal winter, most of it in January.
When is the first frost in Mill Creek?
In half of years the first 32° night comes by November 5, and the last spring frost by March 29.
What is the rainiest month in Mill Creek?
May, with 5.8 inches of rain and melted snow. The year totals 42 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Mill Creek itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Chickasaw Nra, OK (11 mi, snow) and Tishomingo 6n Mesonet, OK (10 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.